Unauthenticated users could modify existing submissions by posting a known or guessed submission ID to formie/submissions/save-submission.
Block unauthenticated access to actions/formie/submissions/save-submission, or disable/customize front-end submission editing until patched.
formie extends many thanks to: - Florian (Cyber Security Engineer, arcade solutions ag) - Contact: security@arcade.ch
{
"github_reviewed": true,
"nvd_published_at": "2026-05-29T20:16:28Z",
"github_reviewed_at": "2026-05-29T22:19:19Z",
"cwe_ids": [
"CWE-639"
],
"severity": "HIGH"
}